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A137221 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 5
5 16
6 43
7 107
8 256
9 597
10 1365
11 3072
12 6827
13 15019
14 32768
15 70997
16 152917
17 327680
18 699051
19 1485483
20 3145728
21 6640981
22 13981013
23 29360128
24 61516459
25 128625323
26 268435456
27 559240533
28 1163220309
29 2415919104
30 5010795179

[0,0,0,1,5,16,43,107,256,597,1365,3072,6827,15019,
 32768,70997,152917,327680,699051,1485483,3145728,
 6640981,13981013,29360128,61516459,128625323,
 268435456,559240533,1163220309,2415919104,
 5010795179]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)